Articulated locomotive



Nov. 24, 1931. J. B. ENNIS ARTI CULATED LOCOMOTIVE Filed March 5. 1929 2 Sheets-$119M 1 E QO Q J WL INVENTOR AT ORNEY Nov. 24, 1931. J. B. ENNIS LRTICULATED LOCOMOTIVE Filed March 5, 1929 2 Sheets-Sheet 2 INVENTOR JOJZPH 5. f/V/V/S I. wdiT BY Wm ATTORNEY tate.

" Patented Nov.*z4, 1931 PATENT- OFFICE I j TJOSEPH is. ENNIS, or ramnnson, NEW JERSEY nnr'rcnnnrnn nocoino'rrvn pAipplication filed March .5, 1929. Serial No. 344437; J

This invention more particularly relates to the powergenerator-supporting.frame of articulated locomotives of the type comprisingtwo motor units, and afseparate common [5 power-generator unit flexibly'connected at or nearits ends respectively to the two motor units, the power-generatorunit being'thus a suspended unit free from the restrictions imposed by driving or carrying wheels. 0 Anobject of the invention is to provide a power-generator-supporting frame for a locomotive of the'type above referred to, which in the case of a steam locomotive would constitu'tethe supporting. frame or bed for the boiler, possessing a higher degree of strength, rigidity and durability, in proportion to its weight, than has heretofore been known, and whichwill also materially increase the factor 3 ofsafety, and effect a substantial economy in maintenance cost. With these objects in mind, and asa further object, the powergenerator-supporting frame, as for instance, the boiler-supporting frame of a locomotive, is formed as an integral unit, which is'prefer ablyfintegrally combined with certain associated p arts heretofore separately formed and applied, such parts beingselectedfor integral formation and associated in each case as the special requirements of such case die- 7 While the present invention is not res'tri'cted to steam locomotives, but may be employed with equal advantage in similar types using other sources of power, as illustrative however, of the present invention, the steam locomotive is specially referred to for con- YQIHQIICB. 7 Suchlocomotives, of the type of construction above referred to, limiting thepresent 40 invention as to its broadiaspects, are provided with three principal units, namely, two wheel supported end units, at least one of which being an engine unit, and the third beinga boiler unit, this unit being flexibly connected at or near its 'ends with the respective end units. The invention has particularly to do with the provision of an integral frame or bed for supporting'the boiler and its associated partsjthereupon, and the integral formation "and associationof various-parts with'the frame, as will be hereafter more particularly described. I v j A further object of the invention is to pro vide the wheel supported end units with a frame formed as an integral unit which may be integrally combined with certain associated parts heretofore separately formed'an'd applied, suchparts being selected for integral formation and associated in each case as the special requirements of such case dictate.

, Heretoiore it has been the practice to form the parts of the scveralframes and atten'dant parts in such types'o'f locomotives, separate ly, and to secure them together, and the attendant parts to the, frame, by bolts 01' rivets. 55 Such constructions are seriously disadvantageous, in that certain ofthe parts must be formed with flanges to effect the boltedor riveted connections, which involve a double thickness of metal at the joints, entailing'a material increase in weight andv cost of production. ,A' further disadvantage is the expense involved in assembling the parts, and machining them to insure proper'fits. Frequently the clearance between adjacent parts is so limited as to make the operation of applying the bolts or rivets an extremely difiicult one. Other disadvantages are the cost of frequent inspection required to insure that the parts are tight, and the loss. entailed by the withdrawal of the locomotive fromiservice, for repairs. A further disadvantage. is the comparatively low degree of rigidity and durability of the structure.

The various disadvantages noted, are overcome,in the present invention by forming an integral boiler-supporting frame or bed, and integrally forming and joining therewith certain orall of the usually associated parts,

and in similarly forming, when found desirable, anintegral frame for each of the end units and integrally I forming and joining therewith certain or all of the usual associated parts.

- The improvement claimed is hereinafter fully set forth. v

In the accompanying drawingsLFigure 1 is a diagrammatic side view ofa locomotive embodying the invention; Fig. 2, atopplan -view;of the boiler-supportingframe, and cer- .100

' tain attendant parts; Fig. 3, a side elevation thereof; Figs. 4, 5, and 6, transverse sections taken on the respective lines, 44, 55 and 66, of Fig. 2; Fig. 7, a plan view of one of the engine units; Fig. 8, a side elevation of one of the engine units and a portion of the boiler unit; Fig. 9, an end elevation of Fig.

7 8; Fig. 10, a half section in elevation on the line 1010, of Fig. 8 illustrating a modified means for supporting and. securing the end.

of the boiler; Fig. 11, a half section i'ne'levation on the line 11-11 of Fig. 8 illustrating the preferred means for supporting and se- 1 curing the end of the boiler; :Fig.1-2,'a'section,

in elevation on the line 1212 of Figs. 7 and 8 ;Fig. 13, 21 hori'z'o'ntahcentral section of Fig. 1%; Fig. 14, a View, in elevation, ofa

7 portion of the structure shown in Fig. 10;

Fig.;"1 5, vertical centr'a l'section of Fig. lt

andFig. 16,-asection -'in-elevation* of the fuel hopper and side tankson the line 161'"16 of tially befeach flexibly connected "to-the boiler unit, and one at least be amotor unit, their construction: mayva'ry as desired without affeeting thepr'esentinvention." In'the present instance, both of the" end units Byare shown for convenience "and in conformitywith the usual prajctic'ebf this type of .-l0comoti-ve,= as engine u'ni ts, and while the locomotive, strictly,"has' no r'ea'r-end, it being intended to run in either direction", neverthele'ss for convenieneejthe smoke "stack end-will be 'consid ered the f'ro nt andthecab end therearofthe boiler in "the following description, 'while contrariwise, the outer endof-each of the end 3 I 'iinits Bfwill be considered as their respective "firemen-as: Accordingly eachiend unit, in

the present illustration, comprises, in -'the mime. main" frame-'6, supporting' an engine on eithe'r" side indicated" generally with" its "associated parts by the reference 6 and-supported upon -a four wheel leadin'gitruek, b -atwo w'lieel' trailing truck, 6 and six driving whee'ls'b driven-by the respective engines; The frames,- 5, are also shown, each as suppo'rting a Water tank-b in the customtr "manner, and have mounted thereon at convenient locations bolsters, b carrying the usualcent'er' pin plates, 12 for flexible connection with the boiler frame "as will presently' more ifully appear. 7 v

i ()f the features comprising the boiler unit "A;-are shown forbonvenience the boiler proper, a,the"cab; a co'al bunke'na and thesupporting frame (I therefor, which is suspended intermediate the end frames 6, 'to be supported thereby and to afford articulation therewith by means of end bolsters, 0 which cooperate with the bolsters, b and are connected with'the center pin plate Z), thereof to form the flexible joint, by the center pi-n plate, 0 Y l -he carriage of the engine unit may be formed of built up parts, but is preferably constructed in whole in part as a unitary casting,comprising the frames 6, the cylinders b "the bumper b the crossties b the bolster btthe center pin plate'b, the combined tank support and cylinder saddle 6 and vertical flangesassociated with'the crossties and-bumper respectively, 19 9 and'lfih Side bearings 'b may also "beformed onv the bolsterfb yadapted' to cooperate with the side bearin'gsc of the boiler bed G. r

The frame-orbed C, which form-sen important feature of the present invention is formed of an integral steel casting, comprising integrally formed slde members, 0?, and

integrally formed transverseimembers, spanning the side members and integrally conneeted therewith. g I

- VV hile, from ithe broad aspect of the invention, the :side and transverse members may e'of-variousdesigns of construction and the transverse members I variously disposed rela tive to the side "members-and to each-other, in the preferred embodiment, the side membersyc giextend throughout the entirelength of theboiler'unitgare of increased depthat theirf'central portions, that is to say, fish-belly shaped;toip'rovidegreater strength, and are reinforced top-andxbottom by outwardly and inwardly extendingrintegralflanges, o betweengwhioh top'and bottom flanges are the i webs, vi -reduced in weight by aiplurality of openings, $0.

confi urations 'to produce ai'TeductiQn in of suitable, arrangement and weightwh'ile:retaining the required strength,

the openings being reinforced by the out wardly extendingflanges, 0, g r

In the :present instance, the transverse members, :already mentioned are comprised of .two box-shaped members, 0?,[servingas bolsters, each of whichcomprises an outer Wall 0 constituting the ends of the frame, an inner vertical wall, 0 'a top wall, 0 in'the same plane with theitop face of the side'me rrbers,"c ,*and a -bottom wall, 0

inclined downwardly toward the center of theibolst-er. Thefour-sides ofthe bolster are integrally formed and connected 1 together andtoitheflside members, '0 andthe top and .bott o mwalls,-c and 0 extend slightly 'beyondthe o-uterwall, 0?, to form strengthening-flanges,-0 A 1 4 :A Gylindricalwall, 0 of integral formation is disposedwat the-longitudinal center of each bolster,zits upper edge 'being integral lyo joined to thetop;wall,2-c1,and itslower porjoined to the bottom wall, The cylindritends through the cooperating center pin joints therewith.

cal wall is provided. with integral ribs, 0 integrally joined to the top wall, 0 The cylindrical wall affords a support for the center pin plate, 0 which is preferably but not necessarily formed integrally'therewith. The plate is shown with a peripheral strengthening flange and the usual centrally disposed opening 0 for the center pin (not shown) which is passed through the aligned opening shown in the top wall, 0 and'explate 6 of the bolster, b, whereby the boiler unit is suspended between and articulated to the two end units, B-B, to provide flexible Side bearings, -0 are integrally formed on each of the bolsters, 0 for engagement, withflthe side bearings b" formed on the bolsters, b", on the end units in the usual manner.

The smoke box end of the boiler is preferably supported onthe bed C by the member 0 formedintegrally therewith, and preferably secured to the boiler by means of a strap, 0 shown in part in Fig, 11. This end of the boiler may also be secured by the customary bolting as illustrated in Fig. 10. Only one means of securing the boiler need be em ployed. An integral web 0 forms a means of stiffening and supporting the member 0 and on this web are integrally formed the flanges 0 in proximity to perforations c and 0 formed in the web to permit the passage of conduits therethrough, said flanges 0 forming'abutments or means for securing clamps adapted to support the conduits passing through the holes or perforations 0 and 0 A declnc", is providedfor the support of the cab, a and coal bunker, M, at the rear end of the frame C, adj acent'the corresponding bolster at thatend. It comprises a platform, .0 shown flush with and integrally joined to the side members, 0 and top wall of the adjacent bolster, It is opened throughout its longitudinal center to provide a space for the coal conveyor (not shown), which is enclosed at the sides and bottom by the "respective walls, 0 and 0 integrally formed and connected together and to the inner wall, 0 of the adjacent bolster, the sides being also integrally joined to the platform, 0 and to integral strengthening ribs, 0 which are in turn integrally joined to the platform and to the side members, 0

As will be seen, the deck structure, by span ning the side members, aflords additional transverse strengthening means, and on account of its relatively large longitudinal dimension and the manner of strengthening it with the transverse ribs, 0 and side and bottom walls, 0 and 0 it affords great strengthening means for the frame to resist the various forces which it is sub ected to in service, and provides a girder admirably constructed for transmitting the drawbar pull plane, afford an admirable base upon which to support the-boilerand its attendant parts which are secured thereto in any desired manner. I I p 'VGItlCEll flanges or brackets 0 are also formed on one end ofthe bed C, serving as supports for air-pumps or other apparatus that may be desirably'mounted in such location, Back of the firebox end of the boiler, and also supported by the bed G and the plat form 0 formed thereon, is shown a hopper for fuel, havingtheinclined side plates 0 secured to the vertical flanges 0 which latter may be formed integrally with the platform 0 Said vertical flanges 0 may also extend transversely and longitudinally of the platform 0 as shown in Fig. 2, forming abutments for other plates, such as the plates 0 which, when properly assembled, may form, in conjunction with the inclined hopper sides 0, a water-tank for feed water for the boiler. The top plate of the platform 0 may be cut away or provided with openings 0 so that communication may be had between the box-shaped structure of the platform and the water-tank located above it, forming, in effect, a water bottom for the tank.

The frame is made, preferably of cast steel, in asingle piece, with great strength and rigidity, but of relatively light construction; the arrangement of the parts being such that a large open space 0 in the frame, is pro-' vided, leaving the bottom of the boiler proper exposed, where it can be easily reached for repairs.

The invention claimed and desired to be secured by Letters Patent, is:

1. A boiler-supporting frame for a locomotive comprising side members adapted for supporting the boiler thereupon, and a deck spanning the side members provided with a space extending longitudinally thereof adapted for a stoker conveyor, said deck being integrally formed and integrally connected to said side members.

2. An integral boiler-supporting frame for a locomotive, comprising integrally formed side members; integrally formed members spanning the side members and integrally connected therewith, including vertically disposed apertured webs; and flanges formed integral with the webs, adjacent to the apertures for supporting conduits passing through the apertures.

3. In a locomotive, the combination of two engine frames, each comprising side members, crossties, a bolster, a center-plate, and a saddle for cylinders, all formed integrally in a boiler-supporting frame; means flexibly conp anew? m i he bQ er u P-w i f me t "th center plates oft-he engine frames and sppporting it thereon; supply flanks meup ted 031 the engine frames and .a fuel hqpper mount ed on the boilevsuppertingirame 7 +1. Ina locomotive, theeombinemepioftwe' engine flames, each Comprising side frames, eress ties, e'lbolster, a, center-plate; and cylinr clers, all formed integrally; an integlggblly formed boiler suppqrting frame; "meefis flexibly c onnect ing .theboiler sl lppqlgting flame to the cenfier plates of fqh'e engine frames and Supporting it thereon; supply tanksmounteden the engine frames; ainde' fuel hopper mounted enlhe boiler-supper;- ing frame.

- 4 JOSEPH N-ms; 

